Watch Grey's Anatomy Season 7 Episode 18 - Song Beneath the Song online, will be aired March 31, 2011 9:00 PM on ABC. with the title "Song Beneath the Song" this episode will last a very exciting, Grey's Anatomy Lovers should not be missed. all will be revealed clearly. Will it ever end? What will happen?

Previously described that Richard tries to get Adele into Derek and Meredith's Alzheimer's trial; Arizona and Mark try to plan a baby shower for Callie; Henry has another medical complication; competition for the chief resident position is amplified.

In this episode

Jesse Williams and Sarah Drew, who played Dr. Jackson Avery and Dr. April Kepner in season six, have been promoted to series regulars. James Tupper has been cast as Dr. Andrew Perkins, a trauma counselor, for at least two episodes in the seventh season.[56] It has also been revealed that April Kepner and Jackson Avery will be moving in with Meredith and Derek this season. Private Practice's newest series regular Caterina Scorsone who plays Amelia Shepherd will appear in the third episode of this season.